The results showed that HEDP was an effective and stable chemical scale inhibitor;

研究结果表明， HEDP是一种较为有效且稳定的化学阻垢药剂；

youdao

CEG can reflect the scaling ability quickly and correctly and is a simple, highly effective measure to develop new chemical scale-inhibitor.

CEG技术能快速、准确地反映水质结垢能力，是一种简便、高效的开发新型化学阻垢药剂的研究手段。

youdao

By using the system, the inhibition characteristics of kinds of chemical scale inhibitors, and effects of different concentration of the inhibitor, PBTC have been evaluated.

发现不同的阻垢剂或者相同阻垢剂不同剂量所起到的阻垢效果反映在“抑制平台”的长短上。

youdao

"Organic agriculture in general is well suited to small-scale farmers because usually small-scale farmers do not have much cash to purchase external inputs, chemical inputs,pesticides, or chemical fertilizers."

VOA: standard.2010.04.11

Mr Kay told Congress that Iraq's large-scale chemical weapons programme had been all but wound up in 1998 and its stockpiles destroyed in 1995.

ECONOMIST: The new WMD commission

" The opposition's statement said: "Failure to act will be seen by the regime as encouragement to use chemical weapons on a larger scale in the future.

NPR: Syrian Troops Capture Key Town Near Damascus

The document will say "there remains a narrow range of contingencies in which the option of using nuclear weapons can play a role in deterring large-scale conventional, chemical or biological attack, " he said.

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